Improvement in cylinder-cocks



I-I. SGHLAGKS & G. E. HAYES. Cylinder-Cook.'

N. 211,263.` Paren-ted1an.7,1879..

VVYMMMWTV Y"UNITED STATES PATENT @EET-CE,

HENRY SOHLAGKS AND GEORGE E. HAYES, OE CHICAGO, ILLINOIS.

IMPROVEMENT IN CYLINDER-COCKS.`

Specification forming part of Letters Patent No. 211,263, dated January7, 1879 application filed June 21, 18778.

To all whom it 'may concern:

Be it .known that we, HENRY SoHLAcKs and GEORGE E. HAYES, of Chicago, inthe county of Cook and State of Illinois, have invented certain newanduseful Improvements in Cylinder-Cocks; and we do hereby declare thatthe following isa full, clear, and exact description thereof, which willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and toletters of reference markedthereon, which form a part of thisspecification. Y

Our invention relates to that class of valve devices commonly known ascylinder-cocks, devices which are employed for the purpose ofdischarging the water produced by the condensation of the steam in thecylinders of locomotives and other steam-engines.

Our invention consists in providing such devices with a puppet-valve ofpeculiar construction, whereby twoimportant results are accomplished:iirst, through suitable connecting mechanism, the engineer may, whenoccasion requires, raise the valve or valves from their seats, andthereby permit the water of condensation to run out of the cylinders bygravitation 5 second, preventing the formation of a vacuum in thecylinders after the steam is cut off, by admitting air into thecylinders through the automatic operation of the valves,

' all as hereinafter more fully set forth.

In the accompanying` drawings, Figure 1 is a side elevation of alocomotive-cylinder provided with our improved cylinder cocks or valves.Fig. 2 is a vertical sectional view, showing the interior of the valveand its connections. Fig. 3 is a transverse vertical section of thesame.

Referring to the parts by letters, A represents the cylinder, B B, thevalves or cocks; C C, the operating-levers; and D, the rod whichconnects them, so that, by means of suitable connecting-rods and levers,they may be operated from the eab of the locomotive, or from anysuitable point convenient for operation by the engineer in charge of theengine.

The parts of the device as above described in their general arrangementare old and wellknown-devices we do not claim to have invented.

claim to be new are as follows:

Referring to Fig. 2, E represents the valve,

provided with wings c on its upper side, and wings c' on its lower side,said wings acting as guides to keep the valve in proper position, andprevent undue lateral motion of the same. The valve is also providedwith a central stem, f, which projects downwardand beyond its lower end,for the purpose hereinafter described. t

G G' represent the casing and seat of the valve, the upper portion ofthe part G being provided with a screw-thread, by means of which' it issecurely attached to the cylinder, At its lower end the portion G isenlarged to form the valve-chamber, and is also formed with ascrew-thread, into which the lower portion, G', which constitutes thevalve-seat,is screwed. The valve-seat is formed on the inner peripheryof the upper portion of the part G', and the valve-stem f is made to t ahole formed centrally through the lower part of said portion 'G'.

H is an opening, which is formed laterally through the lower portion,G', and communi- Cates with the vertical opening through its center.Said opening H constitutes the eduction-passage for i the escape of thewaterlof condensation, and also may form the inductionopening for thepassage ofthe air into the cylinder to destroy any vacuum or partialvacuum which may be formed therein.

At the point of the inner periphery of the upper portion, G, where theenlargement begins, a beveledshoulder, g, is formed, which, while itacts as a stop to limit the upward motion of the valve, does not preventthe passage of the air into the cylinder, sufficient space being leftbetween the wings c and the annular shoulder g to allow for the passageof air sufficient for the destruction of any vacuum which may be formedin the cylinder..

The lever C at its upper end is formed into a cam, c, by beingeccentrically pivoted to and between lugs g', which project downwardlyfrom and form part of the portion G'..

The lower end of the lever C is bifurcated, so as to embrace both sidesof the connectingrod D, to which it is pivoted; but this particularconnection is not material, and may be effected in any suitable manner.

The operation of the device is as followsz' When the levers C are intheir normal position, as indicated by full lines in Fig. 2 of thedrawings, the stems j' of the valves E rest upon the cams c, and in suchposition the valves E remain upon their seat, preventing the passage ofsteam or water from the interior of the cylinder.

When itis desired to relieve the cylinders from` any accumulation ofcondensed water which may have formed in them, all that is necessary isfor the engineer to move the lever which actuates the connectingmechanism, thereby, through the operation of the cams c, raising thevalves from off' their seats and permitting the water to flow outthrough the openings H; and said openings, for the purpose of moreconveniently carrying ott' the water, may have a downward inclination,as shown at h, in Fig. 3 of the drawings, and, as is obvious, there maybe more than one opening, if found desirable.

VWhen the steam is shut off from the cylinders, and the pistonscontinuing their motion as on a downward grade, a vacuum is liable to beformed within the cylinders, which might seriously affect the freemotion of the pistons.

In such ease any vacuum which may be formed in the cylinders will,through the natural pressure of the atmosphere on the under side of thevalves, cause them to rise from their seats, and admit air through theopenings H, to destroy such vacuum. v

Having described our invention, what we claim as new, and desire tosecure by Letters Patent, is

1. The valve A, having stem f, operating in combination with thecam-lever C, constructed and arranged substantially as and for thepurpose specified. l

2. In combination with the valve E, having wings c, the valve-casing G,having the enlarged lower end and shoulder g, and with the portion G',having one or more openings, H, operating substantially as and for thepurpose specilied.

3. The combination of the valve-chambers G G', having openings H formedtherein, the valve E, having win gs e and stem f, and camlever C,operating substantially as and for the purposes specitied.

In testimony that we claim the foregoing as our own we affix oursignatures in presence of two witnesses.

HENRY SCHLAGKS. GEORGE E. HAYES. W'itnesses HARRY A. WARD, G. FILLMQRESTARKWEATHER.

